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devlian [24]
3 years ago
8

The temperature in the Arctic Circle at 9:00am was 22.8° below zero. By 6:00pm on the same day, the temperature had decreased by

18.15 degrees. What was the temperature after the decrease?
Mathematics
1 answer:
rosijanka [135]3 years ago
8 0
4.65 is the new temperature.
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Whats the squareroot of 72 needs to be simplified
Anton [14]

Answer: 6√2

Step-by-step explanation: The easiest way to do this problem is to factor 72 as 2 · 36, then recognize 36 as a perfect square, 6 · 6.

There's no need to factor further because the 6's pair up

so a 6 comes out of the radical leaving a 2 inside.

So our answer is 6√2.

Always be on the lookout for perfect squares!

Work is attached below.

5 0
3 years ago
What is the equation of the line that is parallel to the given
slamgirl [31]

Answer:

y=\frac{1}{5}x+\frac{12}{5}

Step-by-step explanation:

<u><em>Complete Question:</em></u> What is the equation of line that is parallel to the line y=\frac{1}{5}+4 and passes through (-2,2).

Let\ the\ equation\ of\ line\ is\ y=mx+c\\\\Since\ it\ is\ parallel\ to\ the\ line\ y=\frac{1}{5}x+4,\ the\ slope\ of\ both\ the\ lines\ will\ be\ same.\\\\Slope\ of\ y=\frac{1}{5}x+4\ is=\frac{1}{5}\\\\m=\frac{1}{5}\\\\Equation: y=\frac{1}{5}x+c\\\\It\ passes\ through\ (-2,2),\ This\ point\ will\ satisfy\ the\ equation.\\\\2=\frac{1}{5}\times (-2)+c\\\\c=2+\frac{2}{5}\\\\c=\frac{12}{5}\\\\The\ Equation\ is: y=\frac{1}{5}x+\frac{12}{5}

7 0
3 years ago
What is the surface area of a sphere with a diameter of 16 cm?
Vilka [71]

Answer:

804.25 cm² (corrected to 2 decimal places)

Step-by-step explanation:

Radius = diameter / 2

= 16/ 2

=8 cm

Surface area of sphere = 4πr²

= 4π8²

=804.25 cm² (corrected to 2 decimal places)

6 0
3 years ago
suppose the sales tax rate is 9%. if the sales tax amount is $117 on a taxable item, what is the price of the item before tax?
klemol [59]
$117/1.9= $61.578 rounds to $61.60
$61.60 is the price before tax.
6 0
3 years ago
Solve for the value of z.<br> (52-6)<br> (22+5)
kogti [31]

Answer: 52-6=46 and 22+5=27 if you have to add the sums together then the final is 73 but if you subtract the sums then the final is 19

Step-by-step explanation:

7 0
3 years ago
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